MASLDENSURE-MASLDNCT07172997
Non-Invasive MASLD Diagnosis & T2D Remission Biomarkers
An observational study of MASLD and T2DM (Type 2 Diabetes Mellitus), run by Royal College of Surgeons in Ireland - Medical University of Bahrain at 2 sites in Bahrain.
Trial summary
The goal of this observational study is to prospectively develop and validate a non-invasive scoring system based on metabolic markers, proteomic, and transcriptomic profiles to accurately screen, diagnose, stage, and monitor Metabolic dysfunction-associated steatotic liver disease (MASLD) activity and regression as a… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- MASLD, T2DM (Type 2 Diabetes Mellitus), Non-alcoholic Fatty Liver Disease (NAFLD)
- What is being tested?
- Bariatric Surgery
- Type of treatment
- Surgery or procedure
- How many people
- 163 participants
- Where
- 2 sitesBahrain
- Study dates
- 1 Jan 2025to 30 Jun 2027
- How long will I take part?
- 12 Months
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Bahraini adult obese patients
Who may be able to join
- Adult obese patients undergoing bariatric surgery in KHUH surgery department consented to be included in the study.
Who cannot join
- Patients fail to complete the surgery due to intra-operative complications.
- Patients fail to retrieve liver biopsy sample from due to intra-operative difficulties.
- Patients with missing data pre-operatively
- Body Mass Index less than 30 kg/m2.
- Post-liver transplant patients
- Patients known to have any liver disease other than MASLD
- Patients with history of Alcohol Drinking.
Trial locations and contacts
2 sites in 1 country.
Bahrain2 sites
King Hamad University Hospital
Al Muharraq, Muharraq
Alhakeem Radiology Center
Manama, Manama, 2901
About this study
Official title: Evaluating Non-Invasive Approaches for Screening, Diagnosis, and Monitoring of Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) in Bariatric Patients & Identifying Biomarkers for Predicting Type 2 Diabetes Remission
The goal of this observational study is to prospectively develop and validate a non-invasive scoring system based on metabolic markers, proteomic, and transcriptomic profiles to accurately screen, diagnose, stage, and monitor Metabolic dysfunction-associated steatotic liver disease (MASLD) activity and regression as a replacement for the invasive liver biopsy tool in Bahraini bariatric patients. The study also aims to identify biomarkers for predicting type 2 diabetes mellitus remission post-bariatric surgery. The main questions it aims to answer are:
- What proteomic and transcriptomic markers can be used to accurately screen, diagnose, stage, and monitor MASLD activity and regression?
- What transcriptomic markers can predict type 2 diabetes mellitus remission? Researchers will compare the proteomic and transcriptomic profiles of bariatric patients before and after surgery to identify molecular changes associated with weight loss and normalization of metabolic biomarkers. The data will be used to design and validate a scoring system for MASLD diagnosis and monitoring.
Participants will undergo comprehensive assessments, including anthropometric measurements, metabolic biomarker evaluations, proteomic, and transcriptomic profiling at three time points: before surgery, and at 6- and 12-months post-surgery. The data collected will inform the development of the non-invasive scoring system, which will be tested for its reliability and accuracy in replacing liver biopsy as the standard diagnostic tool for MASLD.
Read the detailed description
Metabolic dysfunction Associated Steatotic Liver Disease (MASLD), previously known as NonAlcoholic Fatty Liver Disease (NAFLD), is becoming the most common cause of liver disease in adults with the pandemic of obesity in this century. MASLD is affecting more than quarter of the whole population on earth and the highest prevalence is in the middle east region. A recent retrospective study performed on bariatric patients at the King Hamad University Hospital (KHUH) reported a prevalence of 82.3% of MASLD before the surgery. MASLD progression may lead to liver cirrhosis following which the liver cells become damaged irreversibly. The current gold standard to diagnose MASLD is liver biopsy, however, this method has several limitations due to its invasive nature.
This observational study aims to study MASLD in depth utilizing molecular analysis tools, which can yield more information about disease progression in bariatric patients specific to the Bahraini population.
The total sample size of our study is estimated to be around 163 participants of which 134 subjects would to be positive cases of MASLD. We will include the patients undergoing bariatric surgery from the January to December 2025. An informed consent will be taken from the patients to participate in the research while consenting them for the surgery. The surgeon will inform the participant that radiological and biochemical investigations will be done pre-operatively as well as wedge liver biopsy will be taken during the laparoscopic procedure.
Several data will be collected from the enrolled patients' medical records to study disease progression before the surgery, 6 months and 12 months after the surgery:
- Anthropometric Measures including weight, hight, body mass index, etc.
- Body composition data including fat mass, muscle mass, etc.
- Routine bariatric profile blood results including liver enzymes, platelets, etc.
- Abdominal ultrasonography reports.
- Shear wave elastography radiological assessment
- Proteomic and transcriptomic profiling outside Bahrain
- Conditions
- MASLD, T2DM (Type 2 Diabetes Mellitus), Non-alcoholic Fatty Liver Disease (NAFLD), Obesity
- Being tested
- Bariatric Surgery
- Keywords
- metabolic biomarkers, MASLD proteomics, MASLD transcriptomics, T2DM Transcriptomics, liver biopsy, proteomic biomarkers, transcriptomic biomarkers, bariatric surgery, non-invasive scoring system, shear wave elastoghraphy, Middle East population, Metabolic biomarker evaluation, Anthropometric measurements, Transcriptome profiling, Diagnostic tools, MASLD, Metabolic dysfunction associated liver disease, T2D, T2DM, Type 2 Diabetes Mellitus
- Medical subject headings
- Diabetes Mellitus, Type 2, Non-alcoholic Fatty Liver Disease, Obesity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Bariatric SurgeryProcedure or surgery
Also called Sleeve Gastrectomy, Roux-en-Y, Metabolic Surgery, One Anastomosis Gastric Bypass
A surgical procedure used to manage obesity and obesity-related conditions.
| Study group | Role | What they receive |
|---|---|---|
| MASLD metabolic biomarker | Adult obese patients (18 years old and above) who underwent bariatric surgery in KHUH surgery department from January 2025 to December2025. Receives: Procedure: Bariatric Surgery |
What is being measured
The primary outcome is the main question the study is designed to answer.
Accuracy of Non-invasive Ultrasonography Tools for MASLD Assessment
To assess the diagnostic accuracy of three ultrasonography tools for diagnosing MASLD by calculating their sensitivity (%), specificity(%), positive predictive value (PPV)(%), and negative predictive value (NPV)(%) compared to the liver histopathology diagnosis:
- Conventional Ultrasonography: Detects liver steatosis and evaluates liver size (cm), texture, and fibrosis.
- Shear-wave elastography (SWE): Measures liver stiffness(kPa), correlating with fibrosis severity (F0-F1: 0.0 - 8.27 kPa = Normal-mild, F2: 8.27 - 9.4 kPa = mild-moderate, F3: 9.4-11.8 kPa = moderate-severe, F4: >11.8 kPa cirrhosis).
- Ultrasound-guided acoustic pulse (UGAP) examination: Combines ultrasound with acoustic pulses to assess liver steatosis by measuring the attenuation of ultrasound waves as they pass through the liver. Higher attenuation values generally correlate with a greater degree of hepatic steatosis (attenuation coefficient cutoff value (dB/cm/MHz): ≥S1= 0.65, ≥S2= 0.71, S3= 0.77).
Measured: At Baseline, at 6-months after the surgery, and at 12 months after the surgery
Proteomic Changes and Their Correlation with MASLD Regression
This outcome measures changes in protein expression between MASLD-positive patients and a control of MASLD- negative patients. Both group will have equal number of participants, and equal male to female ratio.
Protein levels will be measured using liquid chromatography tandem mass spectrometry (counts per second (cps), and Changes in protein levels and will be quantified as percent and fold changes.
.
Measured: At Baseline
Accuracy of Available Formulae for MASLD Assessment
To evaluate the diagnostic accuracy of three formulae for diagnosing MASLD by assessing Sensitivity(percentage), Specificity(percentage), Positive Predictive Value (PPV)(percentage), and Negative Predictive Value (NPV)(percentage) compared to the liver histopathology diagnosis.
- APRI: Uses AST levels (U/L) and platelet count (x10^9/l) to estimate liver fibrosis risk (< 0.5 = minimal or no fibrosis, 0.5 - 1.5 = Moderate fibrosis, > 1.5 = Severe fibrosis or cirrhosis).
- FIB-4: Combines age(years), AST(U/L), ALT(U/L), and platelet count (x10^9/l) to assess liver fibrosis risk (< 1.45 = minimal or no fibrosis, 1.45 - 3.39 = significant fibrosis, ≥ 3.4 = advanced fibrosis or cirrhosis).
- NAFLD-Fibrosis Score: Uses age (years), BMI (kg/m^2), diabetes status, liver enzymes (U/l), platelet count (x10^9/l), and albumin (g/L) to assess fibrosis risk (< -1.455 = low probability of fibrosis, -1.455- 0.765 = significant fibrosis, > 0.675 = high probability of fibrosis).
Measured: At Baseline, at 6-months after the surgery, and at 12 months after the surgery
mi-RNA Changes and Their Correlation with MASLD Regression and Diabetes Remission
This outcome measures changes in circulating microRNA (miRNA) levels, in relation to diabetes remission post-bariatric surgery. Changes in miRNA levels will be quantified as percent and fold changes.
miRNA levels will be measured using micro-array technique. Changes will be assessed in the diabetic disease state and after achieving diabetes remission, defined by fasting glucose <100 mg/dL and HbA1c <6.5%.
miRNA changes will be correlated with diabetes remission at 6 and 12 months.
Measured: At Baseline, at 6-months after the surgery, and at 12 months after the surgery
Secondary outcomes (4)
Percentage of MASLD Regression Post-Bariatric Surgery
This outcome aims to assess the regression of Metabolic Dysfunction-associated Steatotic Liver Disease (MASLD) after bariatric surgery. MASLD regression will be evaluated through changes in liver stiffness, liver enzymes, inflammatory markers, and MASLD risk scores:
- Liver Stiffness (kPa): Measured by elastography. A decrease of at least 30% from baseline suggests regression.
- Liver Enzymes [AST, ALT, ALP, GGT (U/L)]: A significant decrease in enzyme levels indicates improved liver function.
- Inflammatory Markers: A reduction in inflammatory markers (e.g., CRP) signals MASLD improvement.
- MASLD Risk Scores:
- FIB-4: A reduction in score suggests decreased fibrosis.
- APRI: A decrease indicates improved liver function.
- NAFLD-Fibrosis Score: A reduction suggests MASLD regression.
MASLD regression will be assessed at 6- and 12-months post-surgery, focusing on these markers and risk scores.
Measured: At 6-months after the surgery, and at 12 months after the surgery
Percentage of Type 2 Diabetes Remission Post-Bariatric Surgery
This outcome evaluates the remission of Type 2 Diabetes Mellitus (T2DM) following bariatric surgery. T2DM remission will be determined by changes in fasting glucose and glycated hemoglobin (HbA1c) levels:
Fasting Glucose: Fasting glucose levels will be measured after an overnight fast. A fasting glucose level below 100 mg/dL will be considered indicative of T2DM remission.
Glycated Hemoglobin (HbA1c): HbA1c levels reflect average blood glucose over the past 2-3 months. T2DM remission is defined as an HbA1c level below 6.5% without the need for diabetes medications.
T2DM remission will be assessed at 6 and 12 months following bariatric surgery, with remission defined by meeting the aforementioned glucose and HbA1c thresholds.
Measured: At 6-months after the surgery, and at 12 months after the surgery
Excess Weight Loss (EWL) Measurement
This outcome assesses the effectiveness of bariatric surgery in terms of Excess Weight Loss (EWL). EWL will be calculated based on individual measurements of weight and ideal body weight.
- Pre-surgery Weight (kg): Weight will be measured before surgery.
- Post-surgery Weight (kg): Weight will be measured at 6 and 12 months.
- Ideal Body Weight (kg): Ideal body weight (IBW) will be calculated using one of the following formulae based on patients' gender: For Men: IBW (kg) = 50 + 0.91 × (height in cm - 152.4) For Women: IBW (kg) = 45.5 + 0.91 × (height in cm - 152.4)
- Excess Weight Loss (EWL): EWL will be calculated as: EWL (%) = [(Pre-surgery weight - Ideal body weight) / (Pre-surgery weight - post-surgery weight)] × 100
- Statistical Analysis: Paired t-tests will compare pre- and post-surgery weight. Regression models will assess factors affecting EWL and its link to clinical outcomes.
Measured: At Baseline, at 6-months after the surgery, and at 12 months after the surgery
Body Composition Parameters After Bariatric Surgery
The body composition is measured using Bioelectrical Impedance Analysis (BIA) device to assess the proportions of fat, muscle, bone, and water in the body.
The following parameters are measured at baseline, and then at 6 and 12 months after bariatric surgery: Weight (kg), Height (m),BMI (kg/m^2), Fat Mass (kg), Fat Free Mass (kg), Fat Percentage (%), Bone Mass (kg), Muscle Mass (kg), Total Body Water (kg), Intracellular Water (kg), Extracellular water (kg), Visceral Fat Rating, Metabolic age (years)
All parameters are measured using a fully-automated BIA scales.
Measured: At baseline, and at 6 months and 12 months after bariatric surgery
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Sep 2025
- Study start1 Jan 2025
- Primary completion31 Dec 2026 (estimated)
- Study completion30 Jun 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (18)Papers the sponsor has linked to this study.
- Other trials for MASLDStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 163 participants (estimated)
- Target duration
- 12 Months
Sponsor and investigators
- Lead sponsor
- Royal College of Surgeons in Ireland - Medical University of Bahrain
- Sponsor type
- University, hospital or other
- Collaborators
- King Hamad University Hospital, Bahrain, King Faisal Specialist Hospital & Research Center, King Fahad Medical City
- Responsible party
- Sponsor
- Investigators
- John Flood, Principal investigator, RCSI-MUB
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07172997
- Sponsor's protocol ID
- 559 / 06-Dec-2024
- Other IDs
- RMS-KHUH /IRB/ 2024-788
- Acronym
- ENSURE-MASLD
- Status last verified
- Sep 2026
- First submitted
- 30 Jan 2025
- Last updated
- 28 Oct 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Monitoring, audits, and REC review will be permitted and provide direct access to source data and documents. The Lead PI and the researchers assigned by him will have access to the stored data/specimens. Only the Lead PI and the researchers assigned working on this study will be eligible to obtain the data/specimens from the participants during data collection.
Publications
Bujang MA, Adnan TH. Requirements for Minimum Sample Size for Sensitivity and Specificity Analysis. J Clin Diagn Res. 2016 Oct;10(10):YE01-YE06. doi: 10.7860/JCDR/2016/18129.8744. Epub 2016 Oct 1.
PubMed 27891446Slomski A. Bariatric Surgery Approaches Reduce Fatty Liver Disease. JAMA. 2022 Feb 22;327(8):710. doi: 10.1001/jama.2022.1532. No abstract available.
PubMed 35191926Poljo A, Kopf S, Sulaj A, Roessler S, Albrecht T, Goeppert B, Bojko S, Muller-Stich BP, Billeter AT. The role of bariatric surgery on beta-cell function and insulin resistance in patients with nonalcoholic fatty liver disease and steatohepatitis. Surg Obes Relat Dis. 2023 Dec;19(12):1421-1434. doi: 10.1016/j.soard.2023.07.005. Epub 2023 Jul 24.
PubMed 37666725Geerts A, Lefere S. Bariatric surgery for non-alcoholic fatty liver disease: Indications and post-operative management. Clin Mol Hepatol. 2023 Feb;29(Suppl):S276-S285. doi: 10.3350/cmh.2022.0373. Epub 2022 Dec 22.
PubMed 36545709Gluszynska P, Lemancewicz D, Dzieciol JB, Razak Hady H. Non-Alcoholic Fatty Liver Disease (NAFLD) and Bariatric/Metabolic Surgery as Its Treatment Option: A Review. J Clin Med. 2021 Dec 7;10(24):5721. doi: 10.3390/jcm10245721.
PubMed 34945016Elhelw O, Ragavan S, Majeed W, Alkhaffaf B, Mohammed N, Senapati S, Ammori BJ, Robinson JA, Syed AA. The impact of bariatric surgery on liver enzymes in people with obesity: A 5-year observational study. Surgeon. 2024 Feb;22(1):e26-e33. doi: 10.1016/j.surge.2023.07.006. Epub 2023 Aug 9.
PubMed 37567846Verrastro O, Panunzi S, Castagneto-Gissey L, De Gaetano A, Lembo E, Capristo E, Guidone C, Angelini G, Pennestri F, Sessa L, Vecchio FM, Riccardi L, Zocco MA, Boskoski I, Casella-Mariolo JR, Marini P, Pompili M, Casella G, Fiori E, Rubino F, Bornstein SR, Raffaelli M, Mingrone G. Bariatric-metabolic surgery versus lifestyle intervention plus best medical care in non-alcoholic steatohepatitis (BRAVES): a multicentre, open-label, randomised trial. Lancet. 2023 May 27;401(10390):1786-1797. doi: 10.1016/S0140-6736(23)00634-7. Epub 2023 Apr 21.
PubMed 37088093Miyake T, Miyazaki M, Yoshida O, Kanzaki S, Nakaguchi H, Nakamura Y, Watanabe T, Yamamoto Y, Koizumi Y, Tokumoto Y, Hirooka M, Furukawa S, Takeshita E, Kumagi T, Ikeda Y, Abe M, Toshimitsu K, Matsuura B, Hiasa Y. Relationship between body composition and the histology of non-alcoholic fatty liver disease: a cross-sectional study. BMC Gastroenterol. 2021 Apr 13;21(1):170. doi: 10.1186/s12876-021-01748-y.
PubMed 33849437Kouvari M, Valenzuela-Vallejo L, Guatibonza-Garcia V, Polyzos SA, Deng Y, Kokkorakis M, Agraz M, Mylonakis SC, Katsarou A, Verrastro O, Markakis G, Eslam M, Papatheodoridis G, George J, Mingrone G, Mantzoros CS. Liver biopsy-based validation, confirmation and comparison of the diagnostic performance of established and novel non-invasive steatotic liver disease indexes: Results from a large multi-center study. Metabolism. 2023 Oct;147:155666. doi: 10.1016/j.metabol.2023.155666. Epub 2023 Jul 30.
PubMed 37527759Hadizadeh F, Faghihimani E, Adibi P. Nonalcoholic fatty liver disease: Diagnostic biomarkers. World J Gastrointest Pathophysiol. 2017 May 15;8(2):11-26. doi: 10.4291/wjgp.v8.i2.11.
PubMed 28573064Ozturk A, Mohammadi R, Pierce TT, Kamarthi S, Dhyani M, Grajo JR, Corey KE, Chung RT, Bhan AK, Chhatwal J, Samir AE. Diagnostic Accuracy of Shear Wave Elastography as a Non-invasive Biomarker of High-Risk Non-alcoholic Steatohepatitis in Patients with Non-alcoholic Fatty Liver Disease. Ultrasound Med Biol. 2020 Apr;46(4):972-980. doi: 10.1016/j.ultrasmedbio.2019.12.020. Epub 2020 Jan 29.
PubMed 32005510Chimoriya R, Piya MK, Simmons D, Ahlenstiel G, Ho V. The Use of Two-Dimensional Shear Wave Elastography in People with Obesity for the Assessment of Liver Fibrosis in Non-Alcoholic Fatty Liver Disease. J Clin Med. 2020 Dec 29;10(1):95. doi: 10.3390/jcm10010095.
PubMed 33383965Noureddin M, Loomba R. Nonalcoholic fatty liver disease: Indications for liver biopsy and noninvasive biomarkers. Clin Liver Dis (Hoboken). 2012 Sep 25;1(4):104-107. doi: 10.1002/cld.65. eCollection 2012 Sep. No abstract available.
PubMed 31186861Sumida Y, Nakajima A, Itoh Y. Limitations of liver biopsy and non-invasive diagnostic tests for the diagnosis of nonalcoholic fatty liver disease/nonalcoholic steatohepatitis. World J Gastroenterol. 2014 Jan 14;20(2):475-85. doi: 10.3748/wjg.v20.i2.475.
PubMed 24574716Nalbantoglu IL, Brunt EM. Role of liver biopsy in nonalcoholic fatty liver disease. World J Gastroenterol. 2014 Jul 21;20(27):9026-37. doi: 10.3748/wjg.v20.i27.9026.
PubMed 25083076
Study at a glance
From the registry record, last updated by the sponsor on 28 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluating Non-Invasive Approaches for Screening, Diagnosis, and Monitoring of Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) in Bariatric Patients & Identifying Biomarkers for Predicting Type 2 Diabetes Remission
- ClinicalTrials.gov ID
- NCT07172997
- Acronym / sponsor ID
- ENSURE-MASLD / 559 / 06-Dec-2024
- Conditions
- MASLD, T2DM (Type 2 Diabetes Mellitus), Non-alcoholic Fatty Liver Disease (NAFLD), Obesity
- Keywords
- metabolic biomarkers, MASLD proteomics, MASLD transcriptomics, T2DM Transcriptomics, liver biopsy, proteomic biomarkers, transcriptomic biomarkers, bariatric surgery
- Study type
- Observational
- Recruitment status
- Active, not recruiting
- Enrolment
- 163 participants (estimated)
- Lead sponsor
- Royal College of Surgeons in Ireland - Medical University of BahrainUniversity, hospital or other
- Collaborators
- King Hamad University Hospital, Bahrain, King Faisal Specialist Hospital & Research Center, King Fahad Medical City
- Study start
- 1 Jan 2025 (actual)
- Primary completion
- 31 Dec 2026 (estimated)
- Study completion
- 30 Jun 2027 (estimated)
- First posted
- 15 Sep 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this observational study is to prospectively develop and validate a non-invasive scoring system based on metabolic markers, proteomic, and transcriptomic profiles to accurately screen, diagnose, stage, and monitor Metabolic dysfunction-associated steatotic liver disease (MASLD) activity and regression as a replacement for the invasive liver biopsy tool in Bahraini bariatric patients. The study also aims to identify biomarkers for predicting type 2 diabetes mellitus remission post-bariatric surgery. The main questions it aims to answer are:
- What proteomic and transcriptomic markers can be used to accurately screen, diagnose, stage, and monitor MASLD activity and regression?
- What transcriptomic markers can predict type 2 diabetes mellitus remission? Researchers will compare the proteomic and transcriptomic profiles of bariatric patients before and after surgery to identify molecular changes associated with weight loss and normalization of metabolic biomarkers. The data will be used to design and validate a scoring system for MASLD diagnosis and monitoring.
Participants will undergo comprehensive assessments, including anthropometric measurements, metabolic biomarker evaluations, proteomic, and transcriptomic profiling at three time points: before surgery, and at 6- and 12-months post-surgery. The data collected will inform the development of the non-invasive scoring system, which will be tested for its reliability and accuracy in replacing liver biopsy as the standard diagnostic tool for MASLD.
Detailed description
Metabolic dysfunction Associated Steatotic Liver Disease (MASLD), previously known as NonAlcoholic Fatty Liver Disease (NAFLD), is becoming the most common cause of liver disease in adults with the pandemic of obesity in this century. MASLD is affecting more than quarter of the whole population on earth and the highest prevalence is in the middle east region. A recent retrospective study performed on bariatric patients at the King Hamad University Hospital (KHUH) reported a prevalence of 82.3% of MASLD before the surgery. MASLD progression may lead to liver cirrhosis following which the liver cells become damaged irreversibly. The current gold standard to diagnose MASLD is liver biopsy, however, this method has several limitations due to its invasive nature.
This observational study aims to study MASLD in depth utilizing molecular analysis tools, which can yield more information about disease progression in bariatric patients specific to the Bahraini population.
The total sample size of our study is estimated to be around 163 participants of which 134 subjects would to be positive cases of MASLD. We will include the patients undergoing bariatric surgery from the January to December 2025. An informed consent will be taken from the patients to participate in the research while consenting them for the surgery. The surgeon will inform the participant that radiological and biochemical investigations will be done pre-operatively as well as wedge liver biopsy will be taken during the laparoscopic procedure.
Several data will be collected from the enrolled patients' medical records to study disease progression before the surgery, 6 months and 12 months after the surgery:
- Anthropometric Measures including weight, hight, body mass index, etc.
- Body composition data including fat mass, muscle mass, etc.
- Routine bariatric profile blood results including liver enzymes, platelets, etc.
- Abdominal ultrasonography reports.
- Shear wave elastography radiological assessment
- Proteomic and transcriptomic profiling outside Bahrain
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Target follow-up
- 12 Months
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| MASLD metabolic biomarker | – | Procedure: Bariatric SurgeryAdult obese patients (18 years old and above) who underwent bariatric surgery in KHUH surgery department from January 2025 to December2025. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Bahraini adult obese patients
Key inclusion criteria (1 listed)
- Adult obese patients undergoing bariatric surgery in KHUH surgery department consented to be included in the study.
Key exclusion criteria (7 listed)
- Patients fail to complete the surgery due to intra-operative complications.
- Patients fail to retrieve liver biopsy sample from due to intra-operative difficulties.
- Patients with missing data pre-operatively
- Body Mass Index less than 30 kg/m2.
- Post-liver transplant patients
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Bariatric SurgeryAlso: Sleeve Gastrectomy, Roux-en-Y, Metabolic Surgery, One Anastomosis Gastric BypassA surgical procedure used to manage obesity and obesity-related conditions. | Procedure or surgery | MASLD metabolic biomarker |
Primary outcome
Accuracy of Non-invasive Ultrasonography Tools for MASLD Assessment
Time frame: At Baseline, at 6-months after the surgery, and at 12 months after the surgery
To assess the diagnostic accuracy of three ultrasonography tools for diagnosing MASLD by calculating their sensitivity (%), specificity(%), positive predictive value (PPV)(%), and negative predictive value (NPV)(%) compared to the liver histopathology diagnosis: * Conventional Ultrasonography: Detects liver steatosis and evaluates liver size (cm), texture, and fibrosis. * Shear-wave elastography (SWE): Measures liver stiffness(kPa), correlating with fibrosis severity (F0-F1: 0.0 - 8.27 kPa = Normal-mild, F2: 8.27 - 9.4 kPa = mild-moderate, F3: 9.4-11.8 kPa = moderate-severe, F4: >11.8 kPa cirrhosis). * Ultrasound-guided acoustic pulse (UGAP) examination: Combines ultrasound with acoustic pulses to assess liver steatosis by measuring the attenuation of ultrasound waves as they pass through the liver. Higher attenuation values generally correlate with a greater degree of hepatic steatosis (attenuation coefficient cutoff value (dB/cm/MHz): ≥S1= 0.65, ≥S2= 0.71, S3= 0.77).
Proteomic Changes and Their Correlation with MASLD Regression
Time frame: At Baseline
This outcome measures changes in protein expression between MASLD-positive patients and a control of MASLD- negative patients. Both group will have equal number of participants, and equal male to female ratio. Protein levels will be measured using liquid chromatography tandem mass spectrometry (counts per second (cps), and Changes in protein levels and will be quantified as percent and fold changes. .
Accuracy of Available Formulae for MASLD Assessment
Time frame: At Baseline, at 6-months after the surgery, and at 12 months after the surgery
To evaluate the diagnostic accuracy of three formulae for diagnosing MASLD by assessing Sensitivity(percentage), Specificity(percentage), Positive Predictive Value (PPV)(percentage), and Negative Predictive Value (NPV)(percentage) compared to the liver histopathology diagnosis. 1. APRI: Uses AST levels (U/L) and platelet count (x10^9/l) to estimate liver fibrosis risk (< 0.5 = minimal or no fibrosis, 0.5 - 1.5 = Moderate fibrosis, > 1.5 = Severe fibrosis or cirrhosis). 2. FIB-4: Combines age(years), AST(U/L), ALT(U/L), and platelet count (x10^9/l) to assess liver fibrosis risk (< 1.45 = minimal or no fibrosis, 1.45 - 3.39 = significant fibrosis, ≥ 3.4 = advanced fibrosis or cirrhosis). 3. NAFLD-Fibrosis Score: Uses age (years), BMI (kg/m^2), diabetes status, liver enzymes (U/l), platelet count (x10^9/l), and albumin (g/L) to assess fibrosis risk (< -1.455 = low probability of fibrosis, -1.455- 0.765 = significant fibrosis, > 0.675 = high probability of fibrosis).
mi-RNA Changes and Their Correlation with MASLD Regression and Diabetes Remission
Time frame: At Baseline, at 6-months after the surgery, and at 12 months after the surgery
This outcome measures changes in circulating microRNA (miRNA) levels, in relation to diabetes remission post-bariatric surgery. Changes in miRNA levels will be quantified as percent and fold changes. miRNA levels will be measured using micro-array technique. Changes will be assessed in the diabetic disease state and after achieving diabetes remission, defined by fasting glucose <100 mg/dL and HbA1c <6.5%. miRNA changes will be correlated with diabetes remission at 6 and 12 months.
4 secondary outcomes
Percentage of MASLD Regression Post-Bariatric Surgery
Time frame: At 6-months after the surgery, and at 12 months after the surgery
Percentage of Type 2 Diabetes Remission Post-Bariatric Surgery
Time frame: At 6-months after the surgery, and at 12 months after the surgery
Excess Weight Loss (EWL) Measurement
Time frame: At Baseline, at 6-months after the surgery, and at 12 months after the surgery
Body Composition Parameters After Bariatric Surgery
Time frame: At baseline, and at 6 months and 12 months after bariatric surgery
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Oct 2026.
- Background: PubMed 27891446Bujang MA, Adnan TH. Requirements for Minimum Sample Size for Sensitivity and Specificity Analysis. J Clin Diagn Res. 2016 Oct;10(10):YE01-YE06. doi: 10.7860/JCDR/2016/18129.8744. Epub 2016 Oct 1.
- Background: PubMed 35191926Slomski A. Bariatric Surgery Approaches Reduce Fatty Liver Disease. JAMA. 2022 Feb 22;327(8):710. doi: 10.1001/jama.2022.1532. No abstract available.
- Background: PubMed 37666725Poljo A, Kopf S, Sulaj A, Roessler S, Albrecht T, Goeppert B, Bojko S, Muller-Stich BP, Billeter AT. The role of bariatric surgery on beta-cell function and insulin resistance in patients with nonalcoholic fatty liver disease and steatohepatitis. Surg Obes Relat Dis. 2023 Dec;19(12):1421-1434. doi: 10.1016/j.soard.2023.07.005. Epub 2023 Jul 24.
- Background: PubMed 36545709Geerts A, Lefere S. Bariatric surgery for non-alcoholic fatty liver disease: Indications and post-operative management. Clin Mol Hepatol. 2023 Feb;29(Suppl):S276-S285. doi: 10.3350/cmh.2022.0373. Epub 2022 Dec 22.
- Background: PubMed 34945016Gluszynska P, Lemancewicz D, Dzieciol JB, Razak Hady H. Non-Alcoholic Fatty Liver Disease (NAFLD) and Bariatric/Metabolic Surgery as Its Treatment Option: A Review. J Clin Med. 2021 Dec 7;10(24):5721. doi: 10.3390/jcm10245721.
- Background: PubMed 37567846Elhelw O, Ragavan S, Majeed W, Alkhaffaf B, Mohammed N, Senapati S, Ammori BJ, Robinson JA, Syed AA. The impact of bariatric surgery on liver enzymes in people with obesity: A 5-year observational study. Surgeon. 2024 Feb;22(1):e26-e33. doi: 10.1016/j.surge.2023.07.006. Epub 2023 Aug 9.
- Background: PubMed 37088093Verrastro O, Panunzi S, Castagneto-Gissey L, De Gaetano A, Lembo E, Capristo E, Guidone C, Angelini G, Pennestri F, Sessa L, Vecchio FM, Riccardi L, Zocco MA, Boskoski I, Casella-Mariolo JR, Marini P, Pompili M, Casella G, Fiori E, Rubino F, Bornstein SR, Raffaelli M, Mingrone G. Bariatric-metabolic surgery versus lifestyle intervention plus best medical care in non-alcoholic steatohepatitis (BRAVES): a multicentre, open-label, randomised trial. Lancet. 2023 May 27;401(10390):1786-1797. doi: 10.1016/S0140-6736(23)00634-7. Epub 2023 Apr 21.
- Background: PubMed 33849437Miyake T, Miyazaki M, Yoshida O, Kanzaki S, Nakaguchi H, Nakamura Y, Watanabe T, Yamamoto Y, Koizumi Y, Tokumoto Y, Hirooka M, Furukawa S, Takeshita E, Kumagi T, Ikeda Y, Abe M, Toshimitsu K, Matsuura B, Hiasa Y. Relationship between body composition and the histology of non-alcoholic fatty liver disease: a cross-sectional study. BMC Gastroenterol. 2021 Apr 13;21(1):170. doi: 10.1186/s12876-021-01748-y.
- Background: PubMed 37527759Kouvari M, Valenzuela-Vallejo L, Guatibonza-Garcia V, Polyzos SA, Deng Y, Kokkorakis M, Agraz M, Mylonakis SC, Katsarou A, Verrastro O, Markakis G, Eslam M, Papatheodoridis G, George J, Mingrone G, Mantzoros CS. Liver biopsy-based validation, confirmation and comparison of the diagnostic performance of established and novel non-invasive steatotic liver disease indexes: Results from a large multi-center study. Metabolism. 2023 Oct;147:155666. doi: 10.1016/j.metabol.2023.155666. Epub 2023 Jul 30.
- Background: PubMed 28573064Hadizadeh F, Faghihimani E, Adibi P. Nonalcoholic fatty liver disease: Diagnostic biomarkers. World J Gastrointest Pathophysiol. 2017 May 15;8(2):11-26. doi: 10.4291/wjgp.v8.i2.11.
- Background: PubMed 32005510Ozturk A, Mohammadi R, Pierce TT, Kamarthi S, Dhyani M, Grajo JR, Corey KE, Chung RT, Bhan AK, Chhatwal J, Samir AE. Diagnostic Accuracy of Shear Wave Elastography as a Non-invasive Biomarker of High-Risk Non-alcoholic Steatohepatitis in Patients with Non-alcoholic Fatty Liver Disease. Ultrasound Med Biol. 2020 Apr;46(4):972-980. doi: 10.1016/j.ultrasmedbio.2019.12.020. Epub 2020 Jan 29.
- Background: PubMed 33383965Chimoriya R, Piya MK, Simmons D, Ahlenstiel G, Ho V. The Use of Two-Dimensional Shear Wave Elastography in People with Obesity for the Assessment of Liver Fibrosis in Non-Alcoholic Fatty Liver Disease. J Clin Med. 2020 Dec 29;10(1):95. doi: 10.3390/jcm10010095.
- Individual participant dataSharing planned: Yes. Monitoring, audits, and REC review will be permitted and provide direct access to source data and documents. The Lead PI and the researchers assigned by him will have access to the stored data/specimens. Only the Lead PI and the researchers assigned working on this study will be eligible to obtain the data/specimens from the participants during data collection.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
John Flood principal investigator
RCSI-MUB
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of MASLD and T2DM (Type 2 Diabetes Mellitus), run by Royal College of Surgeons in Ireland - Medical University of Bahrain at 2 sites in Bahrain.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 28 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in Bahrain. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Accuracy of Non-invasive Ultrasonography Tools for MASLD Assessment (time frame: At Baseline, at 6-months after the surgery, and at 12 months after the surgery). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07172997, which also lists 18 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Oct 2026.